In depth comparison and review of Under Armour Sport Wireless Heart Rate and Sennheiser CX 400BT. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Under Armour Sport Wireless Heart Rate | Sennheiser CX 400BT |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Dimensions & Weight Details | - | Earbud: 6 g Charging case: 37 g |
|
| Colour | Black | White | Black | |
| Protection | Sweat-resistant | - | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Under Armour Sport Wireless Heart Rate | Sennheiser CX 400BT |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.1 | Sennheiser CX 400BT have a more advanced version of Bluetooth than Under Armour Sport Wireless Heart Rate. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 10 - 22000 Hz | 5 - 21000 Hz | Under Armour Sport Wireless Heart Rate offer a larger frequency range than Sennheiser CX 400BT. |
| Total Harmonic Distortion (THD) | - | 0.08% | |
| Max Sound Pressure | - | 107 dB | |
| Diaphragm | 5.8 mm | 7 mm | Sennheiser CX 400BT have a thicker diaphragm than Under Armour Sport Wireless Heart Rate. |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Under Armour Sport Wireless Heart Rate | Sennheiser CX 400BT |
|---|
| Form Factor | Built-in | Built-in |
|---|
| REMOTE CONTROL | Under Armour Sport Wireless Heart Rate | Sennheiser CX 400BT |
|---|
| Controls | - | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset |
|---|
| CABLE | Under Armour Sport Wireless Heart Rate | Sennheiser CX 400BT |
|---|
| Cable Type | Micro-USB cable | USB-C to USB-A cable - detachable - straight - 25 cm |
|---|
| FEATURES | Under Armour Sport Wireless Heart Rate | Sennheiser CX 400BT |
|---|
| Features | - | Voice alerts, touch control | |
|---|---|---|---|
| Intelligent Assistant | - | Siri, Google Assistant | |
| Sensors | Heart rate | - |
| BATTERY AND CHARGING | Under Armour Sport Wireless Heart Rate | Sennheiser CX 400BT |
|---|
| Battery Type | Handset battery rechargeable - Lithium Ion | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 50 mAh | 55 mAh | Sennheiser CX 400BT have a higher battery capacity than Under Armour Sport Wireless Heart Rate. |
| Battery Life | 5 hour(s) | 7 hour(s) | Sennheiser CX 400BT lasts longer on a single charge than the Under Armour Sport Wireless Heart Rate. |
| Battery Life Details | - | Continuous playback (50% volume): up to 7 hours Continuous playback (with included charging case): up to 20 hours |
|
| Charging Time | 2 hour(s) | 1.5 hour(s) | Sennheiser CX 400BT recharge faster than Under Armour Sport Wireless Heart Rate. |
| Included Qty | 2 | 2 |
| WIRELESS LINK | Under Armour Sport Wireless Heart Rate | Sennheiser CX 400BT |
|---|
| Radio Transmitter Power | - | 10 mW |
|---|
| OTHERS | Under Armour Sport Wireless Heart Rate | Sennheiser CX 400BT |
|---|
| Included Accessories | Carrying case, 4 pairs of ear tips, micro-USB charging cable | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | |
|---|---|---|---|
| Compliant Standards | - | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU |
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